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filetype.go
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filetype.go
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package storiface
import (
"fmt"
"golang.org/x/xerrors"
"github.com/filecoin-project/go-state-types/abi"
)
const (
FTUnsealed SectorFileType = 1 << iota
FTSealed
FTCache
FTUpdate
FTUpdateCache
FileTypes = iota
)
var PathTypes = []SectorFileType{FTUnsealed, FTSealed, FTCache, FTUpdate, FTUpdateCache}
const (
FTNone SectorFileType = 0
)
var FTAll = func() (out SectorFileType) {
for _, pathType := range PathTypes {
out |= pathType
}
return out
}()
const FSOverheadDen = 10
var FSOverheadSeal = map[SectorFileType]int{ // 10x overheads
FTUnsealed: FSOverheadDen,
FTSealed: FSOverheadDen,
FTUpdate: FSOverheadDen,
FTUpdateCache: FSOverheadDen*2 + 1,
FTCache: 141, // 11 layers + D(2x ssize) + C + R'
}
// sector size * disk / fs overhead. FSOverheadDen is like the unit of sector size
var FsOverheadFinalized = map[SectorFileType]int{
FTUnsealed: FSOverheadDen,
FTSealed: FSOverheadDen,
FTUpdate: FSOverheadDen,
FTUpdateCache: 1,
FTCache: 1,
}
type SectorFileType int
func TypeFromString(s string) (SectorFileType, error) {
switch s {
case "unsealed":
return FTUnsealed, nil
case "sealed":
return FTSealed, nil
case "cache":
return FTCache, nil
case "update":
return FTUpdate, nil
case "update-cache":
return FTUpdateCache, nil
default:
return 0, xerrors.Errorf("unknown sector file type '%s'", s)
}
}
func (t SectorFileType) String() string {
switch t {
case FTUnsealed:
return "unsealed"
case FTSealed:
return "sealed"
case FTCache:
return "cache"
case FTUpdate:
return "update"
case FTUpdateCache:
return "update-cache"
default:
return fmt.Sprintf("<unknown %d %v>", t, (t & ((1 << FileTypes) - 1)).Strings())
}
}
func (t SectorFileType) Strings() []string {
var out []string
for _, fileType := range PathTypes {
if fileType&t == 0 {
continue
}
out = append(out, fileType.String())
}
return out
}
func (t SectorFileType) AllSet() []SectorFileType {
var out []SectorFileType
for _, fileType := range PathTypes {
if fileType&t == 0 {
continue
}
out = append(out, fileType)
}
return out
}
func (t SectorFileType) Has(singleType SectorFileType) bool {
return t&singleType == singleType
}
func (t SectorFileType) SealSpaceUse(ssize abi.SectorSize) (uint64, error) {
var need uint64
for _, pathType := range PathTypes {
if !t.Has(pathType) {
continue
}
oh, ok := FSOverheadSeal[pathType]
if !ok {
return 0, xerrors.Errorf("no seal overhead info for %s", pathType)
}
need += uint64(oh) * uint64(ssize) / FSOverheadDen
}
return need, nil
}
func (t SectorFileType) SubAllowed(allowTypes []string, denyTypes []string) SectorFileType {
var denyMask SectorFileType // 1s deny
if len(allowTypes) > 0 {
denyMask = ^denyMask
for _, allowType := range allowTypes {
pt, err := TypeFromString(allowType)
if err != nil {
// we've told the user about this already, don't spam logs and ignore
continue
}
denyMask = denyMask & (^pt) // unset allowed types
}
}
for _, denyType := range denyTypes {
pt, err := TypeFromString(denyType)
if err != nil {
// we've told the user about this already, don't spam logs and ignore
continue
}
denyMask |= pt
}
return t & denyMask
}
func (t SectorFileType) AnyAllowed(allowTypes []string, denyTypes []string) bool {
return t.SubAllowed(allowTypes, denyTypes) != t
}
func (t SectorFileType) Allowed(allowTypes []string, denyTypes []string) bool {
return t.SubAllowed(allowTypes, denyTypes) == 0
}
func (t SectorFileType) StoreSpaceUse(ssize abi.SectorSize) (uint64, error) {
var need uint64
for _, pathType := range PathTypes {
if !t.Has(pathType) {
continue
}
oh, ok := FsOverheadFinalized[pathType]
if !ok {
return 0, xerrors.Errorf("no finalized overhead info for %s", pathType)
}
need += uint64(oh) * uint64(ssize) / FSOverheadDen
}
return need, nil
}
func (t SectorFileType) All() [FileTypes]bool {
var out [FileTypes]bool
for i := range out {
out[i] = t&(1<<i) > 0
}
return out
}
type SectorPaths struct {
ID abi.SectorID
Unsealed string
Sealed string
Cache string
Update string
UpdateCache string
}
func ParseSectorID(baseName string) (abi.SectorID, error) {
var n abi.SectorNumber
var mid abi.ActorID
read, err := fmt.Sscanf(baseName, "s-t0%d-%d", &mid, &n)
if err != nil {
return abi.SectorID{}, xerrors.Errorf("sscanf sector name ('%s'): %w", baseName, err)
}
if read != 2 {
return abi.SectorID{}, xerrors.Errorf("parseSectorID expected to scan 2 values, got %d", read)
}
return abi.SectorID{
Miner: mid,
Number: n,
}, nil
}
func SectorName(sid abi.SectorID) string {
return fmt.Sprintf("s-t0%d-%d", sid.Miner, sid.Number)
}
func PathByType(sps SectorPaths, fileType SectorFileType) string {
switch fileType {
case FTUnsealed:
return sps.Unsealed
case FTSealed:
return sps.Sealed
case FTCache:
return sps.Cache
case FTUpdate:
return sps.Update
case FTUpdateCache:
return sps.UpdateCache
}
panic("requested unknown path type")
}
func SetPathByType(sps *SectorPaths, fileType SectorFileType, p string) {
switch fileType {
case FTUnsealed:
sps.Unsealed = p
case FTSealed:
sps.Sealed = p
case FTCache:
sps.Cache = p
case FTUpdate:
sps.Update = p
case FTUpdateCache:
sps.UpdateCache = p
}
}